Originally published in 1907. DIMENSIONS, WEIGHTS AND PROPERTIES OF SPECIAL AND STANDARD STRUCTURAL STEEL SHAPES MANUFACTURED BY BETHLEHEM STEEL COMPANY. Includes tables of strengths and other data relating to Bethlehen Special Structural Shapes, or wide flange beams, and their use as beams, girders and columns also similar data relating to American Standard X Beams, Channels, Angles and other sections together with general information regarding steel construction, FOR ENGINEERS, ARCHITECTS AND DRAFTSMEN. prepared by GEORGE H. BLAKELEY. Works at South Bethlehem, Pa., MANUFACTURES Forgings of All Sizes, Rough or Finished, for Marine and Stationary Engines, Locomotives, Machine Tools, etc., of fluid compressed open hearth carbon or nickel steel, hydraulic forged solid or hollow around a mandrel, and annealed or oil tempered. Drop Forgings of all sizes. Hydraulic Presses, Heavy Machinery and Machine Tools designed and built. Armor Plate and Armor Plate Vaults. Land and Naval Ordnance, Finished Guns of all calibers, Gun Forgings, Gun Carriages, Projectiles. Open Hearth Steel Structural Shapes, Special Wide FlangeBeams, Rolled Girders, Rolled Column Sections, Standard I Beams, Channels, Angles, Rounds, Squares and Flats. Open Hearth Steel Rails from 60 to 100 pounds per yard. Steel Castings of all sizes, of carbon or nickel steel. Iron Castings of all sizes. Special Tool Steel. Stay Bolt Iron. Muck Bar Iron. Steel Billets. Pig Iron. GENERAL OFFICE, at the Works, South Bethlehem, Pa. BRANCH SALES OFFICES NEW YORK, 100 Broadway. PHILADELPHIA, Pennsylvania Building. PITTSBURGH, Keystone Bank Building. CHICAGO, Fisher Building. ST. PAUL, Endicott Building. SAN FRANCISCO, James Flood Building. BETHLEHEM STEEL COMPANY, INTRODUCTION. The purpose of this work, in general, is to supply information and tables, relating to steel construction, of value and service to those interested and engaged in the use of Beth- lehem structural steel shapes and, in particular, to illustrate the advantages and economy of the special structural steel shapes introduced and manufactured by Bethlehem Steel Company. The work is divided into three parts. Part I gives the dimensions, weights and structural properties of the Bethlehem special shapes, or wide flange beam sections, with tables of strength and other data relating to their use as beams, girders and columns in construction. Part II gives similar information and data pertaining to the standard structural steel shapes manufactured by Bethlehem Steel Company. Part III gives information and data concerning steel construction in general, together with a collection of useful tables, rules, etc. , for the engineer, architect and draftsman engaged in structural work. The essential data relating to all the special and standard structural steel shapes manufactured by Bethlehem Steel Company is given in Parts I and II. General information applying to both special and standard shapes is given in Part III, as well as much other data that pertains to structural materials not manufactured by Bethlehem Steel Company. The latter data has been selected as a collection of matter of the most frequent use and service to those engaged in structural work. Special care has been exercised in the arrangement of the tabular matter to secure compactness of form and conve- nience for the use of the designer. Such of the tables as were not calculated expressly for this work were obtained from works of presumably independent origin, which were compared for the elimination of errors. BETHLEHEM STEEL COMPANY...